Water purification system, water purification method and device

Abstract

The invention discloses a water purification system, a water purification method and a device. The water purification system comprises an electric control plate, a first electromagnetic valve, a firstcheck valve and a precise filter, wherein the electric control plate is connected with the first electromagnetic valve and is used for controlling opening and closure of the first electromagnetic valve; the first electromagnetic valve is connected with a rear filter element and is used for controlling pure water of a tail end pipeline of the rear filter element to be discharged through the firstcheck valve; the precise filter is connected with the first electromagnetic valve and is used for preventing bacteria of a discharge pipeline from falling back to pollute the pure water; the dischargepipeline is a pipeline positioned above the precise filter; the first check valve is connected with the precise filter and is used for preventing concentrated water of the discharge pipeline from flowing back to pollute the pure water. By adopting the water purification system, pure water with a high TDS value and a great number of bacteria in the tail end pipeline of the rear filter element canbe discharged, and due to adoption of the precise filter, falling back of the bacteria can be further prevented, so that a user can take safe and pollution-free pure water, and the physical and psychological health of users can be ensured.

Description

technical field [0001] The invention relates to the technical field of water purification, in particular to a water purification system, a water purification method and a device. Background technique [0002] At present, water purifiers have been widely used because they have good effects in removing sediment, peculiar smell, heavy metals, organic matter, and bacteria and viruses. However, if the water in the water purifier does not circulate for a long time or is not used, it will be stored in the pressure vent, filter element and pipeline, causing a large number of bacteria to grow, causing secondary pollution of the purified water, and eventually causing the water used by the user to drink. Bacteria exceeding the standard is not conducive to the physical and mental health of users. [0003] After the reverse osmosis water purifier prepares pure water, during the shutdown process, raw water, concentrated water and pure water accumulate in the reverse osmosis membrane elem...

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Problems solved by technology

[0005] In the embodiment of the present invention, a water purification system, water purification method and device are provided to solve the problems in the prior art that when the water purifier is not used for a long time or is re-used after shutting down, it is easy to cause drinking water bacteria to exceed the standard and initial water production The problem of high TDS

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